Complete the dialogues.A: Excuse me, could you tell me where the nearest bus stop is? B: Certainly, walk straight and turn right at the corner. You can't miss it. A: Is it far from here? B: Not at all. It's quite near.A: Thank you very much. B: You are welcome.B. A: Excuse me, can you help me, please? B: Certainly. What's the matter? A: Is there any shopping mall near here? B: Yes, there is. Walk about one hundred metres straight ahead and then turn left at the traffic lights. You can`t take no notice of it.A: Thanks a lot. B: Not at all.